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Title: | Evaluation of forming mixture composition impact on properties of water blown rigid polyurethane (PUR) foam from rapeseed oil polyol |
Authors: | Kairytė, Agnė Vėjelis, Sigitas |
Keywords: | Acetone Glycerine Rapeseed oil polyol Rigid polyurethane (PUR) foam |
Issue Date: | 2015 |
Publisher: | Elsevier |
Citation: | Kairytė, A., Vėjelis, S., 2015. Evaluation of forming mixture composition impact on properties of water blown rigid polyurethane (PUR) foam from rapeseed oil polyol. Industrial Crops and Products. 66, 210-215. |
Series/Report no.: | 66; |
Abstract: | Rapeseed oil based water blown rigid polyurethane foam was prepared by two shot method. Water
was used as a blowing agent on purpose to increase the green nature of the foams. In order to reduce
the temperature and shrinkage, acetone and glycerine were added. The influence of these additives on
foaming characteristics, density, closed cell content, compressive strength and water absorption was
described. It was found that reduction in shrinkage using glycerine leads to greater open cell content and
water absorption, lower compressive strength (by almost 72% and 53%), density (by almost 64% and 74%)
for moulded and free rise specimens, respectively, and delayed cream time of foaming mixture. The use
of acetone reduced foam formation temperature by 15 ◦C, increased moulded and free rise densities by
approximately 8%, as well as compressive strength by 22%, and by 10% for moulded and free rise water
blown polyurethane specimens. |
URI: | http://dspace.vgtu.lt/handle/1/4200 |
ISSN: | 0926-6690 |
Appears in Collections: | Moksliniai straipsniai / Research articles
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